I installed SuperSU from Google Play, and then from a zip file using ClockWorkMod and now it crashes every time I go to log or settings. I tried factory reset, not quite sure how I thought it would help, and it's still broken. I'd like to uninstall it if possible. Fixes are also welcome, tough.
Edit: I'm using LG Nexus 5 with Android 5.1.1, Cyanogenmod 12.1 and ElementalX N5 2.11 kernel.